Therion Irregular

Level 10 DARK/Machine Effect
1600 ATK / 2800 DEF

You can target up to 3 "Therion" monsters in your GY; Special Summon this card from your hand, and if you do, equip them to this card. You can discard 1 "Endless Engine Argyro System"; destroy all cards your opponent controls. While this card is equipped to a monster: You can Special Summon this card, then equip the monster this card was equipped to, to this card. You can only use each effect of "Therion Irregular" once per turn.

Rulings – Yugipedia

Printings:

Power of the Elements: POTE-EN009 (Ultra Rare) - 2022-08-04
25th Anniversary Tin: Dueling Heroes Mega Pack: MP23-EN120 (Common) - 2023-09-07

Prices:

Cardmarket: 0.04 €
TCGplayer: $ 0.08